<template>
  <div>
    <el-upload
      ref="upload"
      :http-request="upload"
      :before-upload="beforeAvatarUpload"
      :on-preview="handlePictureCardPreview"
      :on-remove="handleRemove"
      :limit="1"
      :file-list="fileList"
      :show-file-list="false"
      :auto-upload="true"
      :on-success="handleSuccess"
      class="upload-demo"
      action="''"
      multiple
      accept>
      <el-button size="mini" type="primary" round>本地选择视频</el-button>
    </el-upload>
  </div>
</template>

<script>
import { createId } from '@/utils/index' // 一个生产唯一的id的方法
import OSS from 'ali-oss'
import { selectOSSInfo } from '@/api/set/oss'
// import { upload } from '@/api/product/imageSpace'
// oss 上传
export default {
  name: 'ImgUpload',
  data() {
    return {
      uploadParams: {
        uploadPath: '',
        uploadSize: ''
      },
      fileList: [],
      dialogImageUrl: '',
      dialogVisible: false,
      imageUrl: '',
      filePath: '',
      ossData:{
        region:'',// 服务器集群地区
        accessKeyId:'',// OSS帐号
        accessKeySecret:'',// OSS 密码
        bucket:'',// 阿里云上存储的 Bucket
      }
    }
  },
  created() {
    selectOSSInfo().then(res=>{
      if(res.code==1){
        // res.data=JSON.parse(this.$base64.decode(res.data));
        this.ossData.region=res.data.oss_region;
        this.ossData.accessKeyId=res.data.oss_accessKeyId;
        this.ossData.accessKeySecret=res.data.oss_accessKeySecret;
        this.ossData.bucket=res.data.oss_backetName;
      }
  
    })
  },
  methods: {
    // 图片上传前验证
    beforeAvatarUpload(file) {
      // file.size / 1024 图片的大小
      const format = /^video\/(avi|mp4|x-flv|3gpp)$/.test(file.type);
      const isLt30M = file.size / 1024 / 1024 < 30
      this.uploadParams.uploadSize = file.size
      if (!format) {
        this.$message.error('上传视频只能是 avi，mp4，flv，3gp格式!')
      }
      if (!isLt30M) {
        this.$message.error('上传视频大小不能超过30MB!')
      }
      return format && isLt30M
    },
    // 上传图片到OSS 同时派发一个事件给父组件监听
    upload(item) {
      let type
      const client = new OSS({
        region: this.ossData.region,
        accessKeyId: this.ossData.accessKeyId,
        accessKeySecret: this.ossData.accessKeySecret,
        bucket: this.ossData.bucket
      })
      switch (item.file.type) {
        case 'video/avi': {
          type = 'avi'
        } break
        case 'video/mp4': {
          type = 'mp4'
        } break
        case 'video/x-flv': {
          type = 'flv'
        } break
        case 'video/3gpp': {
          type = '3gp'
        } break
      }
      const key = 'video/goods/shopid=' + this.$store.getters.shopId + '&time=' + new Date().getTime() + '&id=' + this.guidGenerator() + '.' + type// 存储路径，并且给图片改成唯一名字
      return client.put(key, item.file).then(res => { // OSS上传
        const url = res.url
        this.uploadParams.uploadPath = client.signatureUrl(key, { expires: 999999999999999 }) // 可访问的链接
      })
    },
    guidGenerator() {
      var S4 = function() {
        return ((1 + Math.random()) * 0X10000 | 0).toString(16).substring(1)
      }
      return (S4() + S4() + '-' + S4() + '-' + S4() + '-' + S4() + '-' + S4() + S4() + S4())
    },
    handleSuccess(res, file) {
      this.filePath = URL.createObjectURL(file.raw)
      this.fileList = []
      console.log('aaaaaaaaaaaaaaaa')
      console.log(res,file);
      this.$emit('changeSrc', this.uploadParams.uploadPath,this.fileList,file.name)
    },
    handlePictureCardPreview(file) {
      this.dialogImageUrl = file.url
      this.dialogVisible = true
    },
    handleRemove(file, fileList) {

    }
  }
}
</script>
<style rel="stylesheet/scss" lang="scss">
.upload-demo {
  display: inline-block;
  line-height: 32px;
  margin-left: 10px;
}
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #3764FF;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 60px;
  height: 60px;
  line-height: 60px;
  text-align: center;
}
.avatar {
  width: 140px;
  height: 140px;
  display: block;
}
.el-upload-list--picture-card .el-upload-list__item{
    width: 100px;
    height: 100px;
}
.el-upload--picture-card{
    width: 100px;
    height: 100px;
    line-height: 102px;
}
</style>
